Question 1

What is the main purpose of spark ignition in an engine?

Accepted Answer

To ignite the air-fuel mixture for combustion

Answer

To increase fuel efficiency

Answer

To cool the engine

Answer

To decrease exhaust emissions

Question 2

Which component is primarily responsible for producing the spark in a spark ignition engine?

Accepted Answer

Spark plug

Answer

Carburetor

Answer

Ignition coil

Answer

Fuel injector

Question 3

What type of fuel is most commonly used in spark ignition engines?

Accepted Answer

Petrol

Answer

Diesel

Answer

Electricity

Answer

Hydrogen

Question 4

What role does the ignition timing play in a spark ignition engine?

Accepted Answer

It determines when the spark plug ignites the air-fuel mixture

Answer

It controls the fuel intake

Answer

It manages exhaust emissions

Answer

It regulates engine temperature

Question 5

What is the consequence of having a spark plug that is worn out or damaged?

Accepted Answer

Poor engine performance and misfiring

Answer

Improved fuel efficiency

Answer

Increased engine compression

Answer

Decreased exhaust noise

Question 6

What happens if the spark occurs too early in the combustion cycle?

Accepted Answer

It can cause engine knocking

Answer

It reduces emissions

Answer

It improves fuel efficiency

Answer

It increases power output

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